💣Exploit CVE-2024-56651 - Linux Kernel CAN hi311x Use-After-Free Vulnerability

[Maksim]

CVE ID : CVE-2024-56651
Published : Dec. 27, 2024, 3:15 p.m. | 17 minutes ago
Description : In the Linux kernel, the following vulnerability has been resolved: can: hi311x: hi3110_can_ist(): fix potential use-after-free The commit a22bd630cfff ("can: hi311x: do not report txerr and rxerr during bus-off") removed the reporting of rxerr and txerr even in case of correct operation (i. e. not bus-off). The error count information added to the CAN frame after netif_rx() is a potential use after free, since there is no guarantee that the skb is in the same state. It might be freed or reused. Fix the issue by postponing the netif_rx() call in case of txerr and rxerr reporting.
Severity: 0.0 | NA
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